CasterSoundboard - A soundboard for hot-keying and playing back sounds. (For podcasting)

Voxal Voice Changer - Voxal Voice Changer is the name of an ultimate voice changer that delivers the limitless voice changing options to its users.

JN Soundboard - An open-source hotkey soundboard program

Voicemod - What are the voice changers? How do these work? Are these illegal? What is a soundboard? Find all the answers here. Voicemod - The Best FREE Voice Changer

Soundplant - Play sound files with the computer keyboard

MorphVOX - MorphVOX is universal voice changing software that is integrated with the functions of sound effects and background tracks.